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1   /*
2    * #%L
3    * wcm.io
4    * %%
5    * Copyright (C) 2015 wcm.io
6    * %%
7    * Licensed under the Apache License, Version 2.0 (the "License");
8    * you may not use this file except in compliance with the License.
9    * You may obtain a copy of the License at
10   *
11   *      http://www.apache.org/licenses/LICENSE-2.0
12   *
13   * Unless required by applicable law or agreed to in writing, software
14   * distributed under the License is distributed on an "AS IS" BASIS,
15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16   * See the License for the specific language governing permissions and
17   * limitations under the License.
18   * #L%
19   */
20  package io.wcm.caravan.hal.docs.impl;
21  
22  import io.wcm.caravan.hal.docs.impl.reader.ServiceModelReader;
23  import io.wcm.caravan.jaxrs.publisher.ApplicationPath;
24  
25  import org.osgi.framework.Bundle;
26  
27  /**
28   * Build the documentation base URI.
29   */
30  public final class DocsPath {
31  
32    /**
33     * Prefix for documentation URIs
34     */
35    static final String DOCS_URI_PREFIX = "/docs/api";
36  
37    private DocsPath() {
38      // static methods only
39    }
40  
41    /**
42     * Gets documentation URI path.
43     * @param bundle Bundle
44     * @return Path or null if not a JAX-RS application bundle or no haldocs metadata exist.
45     */
46    public static String get(Bundle bundle) {
47      String applicationPath = ApplicationPath.get(bundle);
48      if (applicationPath == null) {
49        return null;
50      }
51      if (!hasHalDocs(bundle)) {
52        return null;
53      }
54      return get(applicationPath);
55    }
56  
57    /**
58     * Gets documentation URI path
59     * @param applicationPath JAX-RS application path
60     * @return Path
61     */
62    public static String get(String applicationPath) {
63      return DOCS_URI_PREFIX + applicationPath;
64    }
65  
66    /**
67     * Checks if the given bundle has documentation metadata stored as resource.
68     * @param bundle Bundle
69     * @return true if metadata found
70     */
71    public static boolean hasHalDocs(Bundle bundle) {
72      return bundle.getResource(ServiceModelReader.DOCS_CLASSPATH_PREFIX + "/" + ServiceModelReader.SERVICE_DOC_FILE) != null;
73    }
74  
75  }